Apple Releases Supplemental Security Update for OS X El Capitan - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Releases Supplemental Security Update for OS X El Capitan

by

OS X El Capitan LogoApple today released a new version of OS X El Capitan Security Update 2016-003, fixing an additional kernel issue that could cause Macs running the operating system to freeze up and become unresponsive.

The 2016-003 Security Update for OS X El Capitan was originally released on December 13 alongside macOS Sierra 10.12.2, but was today reissued with the fix.

Customers who have not downloaded the security update at all will get the new version when updating their machines, while customers who previously installed the security fix will receive a supplemental update to address the freezing problem.

The OS X El Capitan Security Update 2016-003 Supplemental Update fixes a kernel issue that may cause your Mac to occasionally become unresponsive.

Mac users who are still running OS X El Capitan can download the update through the Software Update mechanism in the Mac App Store, and direct download links are also available (Standard Update/Supplemental Update).

The original 2016-003 update fixed a number of security vulnerabilities in the OS X El Capitan operating system.

Related Forum: OS X El Capitan

Top Rated Comments

122 months ago
I think you may have missed the obvious sarcasm in his post.
Score: 6 Votes (Like | Disagree)
Bart Kela Avatar
122 months ago
Aren't there any reasonable apple users that don't moan and groan the same anti apple stuff every time the slightest little thing happens? And why don't you move to Windows and receive those very other day updates? That will give you lots to complain about.

I understand how complex computers have become and how hard it can be to prevent issues. I applaud Apple for what they do. I deplore users who love to complain for the sake of complaining. They should be banned from using Apple products, which frankly, are too good for them.
Smilies were invented to add some subtlety to online written communications. In this case, they communicate sarcasm and the emojis used were correctly employed.

Next time, when a contributor includes emojis, think about what made them consciously decide to include those in the post.

As a matter of fact, MORE people here should use emojis since there are a large number of readers for whom English is not their first language.

Thank you for reading. :D
Score: 4 Votes (Like | Disagree)
Daniel Reed Avatar
122 months ago
It's a security update, not a feature change.
Yes, folks should apply the patch.
Score: 4 Votes (Like | Disagree)
122 months ago
Ugh, ANOTHER security update? Can't apple EVER get ANYTHING right?



;):rolleyes:
Score: 3 Votes (Like | Disagree)
122 months ago
Man 10.11.6 is running fine on my 12" rMB do I want to rattle the bee's nest ?
No. Wait until you crash, lose your data, scream so loud you have a stroke, and then update.

Ugh, ANOTHER security update? Can't apple EVER get ANYTHING right?



;):rolleyes:
Aren't there any reasonable apple users that don't moan and groan the same anti apple stuff every time the slightest little thing happens? And why don't you move to Windows and receive those very other day updates? That will give you lots to complain about.

I understand how complex computers have become and how hard it can be to prevent issues. I applaud Apple for what they do. I deplore users who love to complain for the sake of complaining. They should be banned from using Apple products, which frankly, are too good for them.
Score: 2 Votes (Like | Disagree)
Whitfield Avatar
122 months ago
Holy crap, this was APPLE'S fault?? I've been banging my head against this problem for weeks now, trying to figure out what "kernel task" could possibly be demanding 95% of my 2012 rMBP's resources. :mad:
Not sure about others' experience here, but not only has this not fixed my kernel_task errors, but now I'm experiencing even more memory/CPU headaches. Every hour or so almost all of my apps will become unresponsive, they can't be brought to the front or quit normally. If I force quit them then I can easily open them again, so it's not an issue with total load on the system (2012 rMBP/16GB/750GB with 120GB free). I've already run fsck and other housecleaning tasks and restarted multiple times. I'm about to throw this *&$% computer out the window.
Score: 1 Votes (Like | Disagree)

Popular Stories

Apple Card iPhone 16 Pro Feature

Apple Card Promo to Offer Free AirPods Pro 3

Friday May 15, 2026 8:59 am PDT by
Starting as early as next week, customers who sign up for an Apple Card at Apple's retail stores in the U.S. will receive $249 cash back when they purchase AirPods Pro 3, according to Bloomberg's Mark Gurman. The promotion has yet to be officially announced by Apple, so exact terms and conditions are not available at this time. AirPods Pro 3 are priced at $249 in the U.S., so customers who...
Apple WWDC25 iOS 26 CarPlay Light mode 250609

Six Popular iPhone Apps Now Available on CarPlay

Thursday May 14, 2026 9:10 am PDT by
Apple's CarPlay system for accessing iPhone apps on a vehicle's dashboard screen has received six popular apps in recent weeks: ChatGPT, Perplexity, Grok, Google Meet, WhatsApp, and the indie artist streaming platform Audiomack. Make sure you have the latest version of each app and they will automatically appear on CarPlay. ChatGPT Starting with iOS 26.4, CarPlay supports voice-based...
ipad mini 7 blue

OLED iPad Mini: Release Date, Pricing, and What to Expect

Thursday May 14, 2026 5:08 am PDT by
According to the latest rumors, Apple is close to launching its next-generation iPad mini. So what should we expect from the successor to the iPad mini 7 that Apple released over a year ago? Read on to find out. Processor and Performance Apple is working on a next-generation version of the iPad mini (codename J510/J511) that features the A19 Pro chip, according to information found in code...